{"result":{"text":"9 x squared minus 12 x plus n minus 8 over x plus 4 over x squared space i s space p e r f e c t space s q u a r e\nrightwards double arrow open parentheses 3 x plus 2 over x close parentheses squared minus 4 open parentheses 3 x plus 2 over x close parentheses plus left parenthesis n minus 12 right parenthesis space i s space p e r f e c t space s q u a r e\nrightwards double arrow n minus 12 equals 4 rightwards double arrow n equals 16"},"status":"ok"}